oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 264 )

2018 ( 330 )

2017 ( 339 )

2016 ( 534 )

Custom range...

Search Results: 1 - 10 of 198057 matches for " Tascón "
All listed articles are free for downloading (OA Articles)
Page 1 /198057
Display every page Item
Restauración atraumática para el control de la caries dental: historia, características y aportes de la técnica
Tascón,Jorge;
Revista Panamericana de Salud Pública , 2005, DOI: 10.1590/S1020-49892005000200007
Abstract: this paper presents relevant scientific information on the history, characteristics, and contributions of atraumatic restorative treatment (art) for use in preventing and controlling dental caries. within the area of oral public health, art has been for years an economical, effective method for preventing and controlling caries in vulnerable populations. among other things, art reduces the stress and anxiety in patients that conventional restoration methods produce. this technique promises major benefits for latin america. however, given its limitations with dental cavities on two or more surfaces, it is recommended that more research on this approach be encouraged, with the aim of improving the technique?s effectiveness based on its characteristics, indications, and technical merits.
Creencias sobre caries e higiene oral en adolescentes del Valle del Cauca
Tascón,Jorge Eduardo; Cabrera,Gustavo Alonso;
Colombia Médica , 2005,
Abstract: objective: to know the beliefs about tooth decay and oral hygiene in adolescents from the department of valle of cauca, colombia . methods: the health belief model was used in a descriptive study in 38 out of 42 municipalities of the department. the sample of 5,400 adolescent students from public and private high schools was selected trough a probabilistic, stratified, tri-stage cluster sampling. a structured questionnaire made of 47 items related to the variables of the study was used. results: respecting the etiology, 65% beliefs that dental caries is due to bad oral hygiene, 18% due to bacteria, 7% associates it to the sugar consumption and 10% didn?t know; 41% referred that they have had tooth decay already, 14% said that had decay at moment, 37% did not have perceived history of decay; 99.8% answered that they do bush their teeth, the brushing frequency had a median of 3 times per day; 55% uses dental floss and 51% mouth wash; 14% referred that never have visited the dentist and 27% said that visited him/her 7 months ago or more. conclusions: the use of the health belief model allowed know the basic beliefs about tooth decay and oral hygiene in adolescents of the valley of cauca. beliefs and preventive practices of the participants are not favorable. it is necessary to design preventive interventions for improving perceptions and reducing the presence and effects of the dental caries.
Algunas creencias sobre susceptibilidad y severidad de la caries en adolescentes del Valle del Cauca, Colombia
Tascón,Jorge Eduardo; Cabrera,Gustavo Alonso;
Colombia Médica , 2005,
Abstract: objective: to know existing beliefs about susceptibility and severity of dental caries in high school adolescents in the state of valle del cauca, colombia. methods: the health belief model was used as the theoretic and methodological basis for a descriptive cross-sectional study carried out in 38 out of 42 municipalities of the state of valle of cauca. a total of 5.400 adolescent students registered in public and private high schools aged of 10 and 20 were selected through a probabilistic, cluster, tri-stage, and stratified sample process. results: overall, 51% of the participants believe that dental caries do not affect the mastication process; 52% think they cannot suffer caries again once their teeth have been filled, and 54% does not associate caries with digestion changes; 80% does not relate the use of braces and retainers with the disease; 92% believes dental caries can affect any person and 91% believe that caries might make them lose their teeth. conclusions: beliefs on the severity of caries are favorable in general and beliefs about susceptibility must be improved through preventive intervention strategies directed to this population group
Aplicación de la norma EN 14491:2006 a los silos de acero cilíndricos para la protección frente a explosiones de polvo
Tascón, A.,Aguado, P. J.
Informes de la Construccion , 2012,
Abstract: Dust explosions represent a serious hazard in industries and silo facilities that handle combustible materials. Venting devices are commonly used to try to mitigate the damage caused by any dust explosion. To calculate vent area size, the recommendations given in European standard EN 14491:2006 can be used. However, the protection of silos is not always simple, and frequently the installation of vents becomes technically difficult and costly. The aim of the present work was to analyse the application of standard EN 14491:2006 to cylindrical steel silos, remarking the existing difficulties and limitations and explaining some critical points in order to understand the aforementioned standard. In addition, the cost of protection by venting in silos was studied. Finally, the authors have provided some suggestions to solve the protection of silos, alternative methods to calculate vent areas and expected future trends in this field. Las explosiones de polvo representan un serio peligro en aquellas industrias y silos en los que se manejan materiales combustibles. Para mitigar los efectos de una posible explosión generalmente se utilizan dispositivos de venteo, que pueden dimensionarse siguiendo la norma europea EN 14491:2006. Sin embargo, frecuentemente surgen complicaciones que hacen que la instalación de venteos sea técnicamente complicada y muy costosa. El objetivo de este trabajo fue analizar la aplicación de la norma EN 14491:2006 a los silos metálicos cilíndricos, remarcando las dificultades y limitaciones existentes y explicando sus aspectos clave para poder aplicarla correctamente. También se ha calculado el coste que puede suponer la protección de silos mediante venteos. Finalmente, se proporcionan algunas sugerencias para afrontar la protección de silos, información sobre métodos alternativos de cálculo de venteos y tendencias de futuro en este campo.
Algunas creencias sobre susceptibilidad y severidad de la caries en adolescentes del Valle del Cauca, Colombia
Jorge Eduardo Tascón,Gustavo Alonso Cabrera
Colombia Médica , 2005,
Abstract: Objetivo: Conocer las creencias que sobre susceptibilidad y severidad de la caries dental tienen los adolescentes escolarizados del departamento del Valle del Cauca, Colombia. Método: Se usó el Modelo de Creencias en Salud como eje teórico y metodológico en un estudio descriptivo y transversal en 38 de 42 municipios del departamento del Valle del Cauca. Se seleccionó una muestra de 5.400 adolescentes entre 10 y 20 a os por muestreo probabilístico, trietápico, estratificado, de conglomerados en la población escolar de colegios oficiales y privados. Resultados: Del total de adolescentes 51% no cree que la caries produce cambios en la masticación; 52% de los participantes no cree que le puede dar caries de nuevo, una vez hayan sido obturados o calzados sus dientes y 54% no relaciona la caries con cambios en la digestión; 80% no relaciona el uso de brackets y retenedores con la enfermedad; 92% cree que la caries le puede dar a cualquier persona y 91% cree que la caries puede hacerle perder los dientes. Conclusiones: Las creencias sobre la severidad de la caries son en general favorables; las creencias con respecto a susceptibilidad deben ser mejoradas por medio de estrategias de intervención preventivas dirigidas a este grupo poblacional.
Creencias sobre caries e higiene oral en adolescentes del Valle
Jorge Eduardo Tascón,Gustavo Alonso Cabrera
Colombia Médica , 2005,
Abstract: Objective: To know the beliefs about tooth decay and oral hygiene in adolescents from the Department of Valle of Cauca, Colombia. Methods: The Health Belief Model was used in a descriptive study in 38 out of 42 municipalities of the Department. The sample of 5400 adolescent students from public and private high schools was selected trough a probabilistic, stratified, tri-stage cluster sampling. A structured questionnaire made of 47 items related to the variables of the study was used. Results: Respecting the etiology, 65% beliefs that dental caries is due to bad oral hygiene, 18% due to bacteria, 7% associates it to the sugar consumption and 10% didn’t know; 41% referred that they have had tooth decay already, 14% said that had decay at moment, 37% did not have perceived history of decay; 99.8% answered that they do bush their teeth, the brushing frequency had a median of 3 times per day; 55% uses dental floss and 51% mouth wash; 14% referred that never have visited the dentist and 27% said that visited him/her 7 months ago or more. Conclusions: The use of the Health Belief Model allowed know the basic beliefs about tooth decay and oral hygiene in adolescents of the Valley of Cauca. Beliefs and preventive practices of the participants are not favorable. It is necessary to design preventive interventions for improving perceptions and reducing the presence and effects of the dental caries.
La nanofauna y nanoflora carbonosas
J.M.D. Tascón
Boletin del Grupo Espa?ol del Carbon , 2007,
Abstract: El descubrimiento de una amplia variedad de materiales relacionados con los fullerenos y nanotubos de carbono ha propiciado la proliferación en la literatura científica de una serie de especies que vienen a constituir unas nuevas nanofauna y nanoflora carbonosas.
MODELAMIENTO DEL IMPACTO SIMéTRICO BIDIMENSIONAL EN AGUA EN CALMA DE BOTES DE PLANEO TíPICOS
ROBERTO ALGARíN,ANTONIO BULA,OSCAR TASCóN
DYNA , 2011,
Abstract: El presente artículo muestra el estudio del impacto en dos dimensiones de secciones típicas de botes de planeo con entrada simétrica y agua en calma. El análisis se desarrolló por medio de la programación del algoritmo de S ding [1], determinando la fuerza durante el impacto y la distribución de presión en la sección. Los resultados fueron validados por medio de comparación con los estudios de Mohamed [2], Tveitnes [3], Vorus [4] y Wagner [5]. Estos resultados muestran que uno de los principales factores que afectan el desarrollo de la distribución de presión durante el impacto sobre el casco es el tipo de geometría del bote.
Experiencia en reconstrucción postraumática de uretra posterior en ni?os: Hospital Universitario San Vicente de Paúl. Medellín 1987-2007
Martínez Montoya,Jorge A.; Tascón Acevedo,Natalia M.;
Actas Urológicas Espa?olas , 2009, DOI: 10.4321/S0210-48062009000400012
Abstract: objective: in order to evaluate the efficacy of different surgical techniques for the correction of traumatic lesions of the urethra, we performed a retrospective study in those patients, and evaluated different complications such as postsurgical stenosis of the urethra, incontinence and impotence (erectile dysfunction). methods: a retrospective study was conducted, reviewing the clinical charts of 43 patients admitted to the san vicente of paul hospital, with diagnosis of traumatic rupture of the posterior urethra from 1987 to 2007. we analyzed different demographic data, type of surgical correction, early and late complications. results: the average age of the patients was 7.7 years, the average follow up was 30.6 months, and all the patients were male with a posterior urethral rupture. 27 patients underwent a primary urethral repair (63%), 13 patients underwent a cistostomy with later urologic reconstruction (30%), in 3 patients (7%) other surgical procedures were made. overall complication rate was 39.5%. these complications were: urethral stenosis, 26 patients (60.5%), urinary retention secondary to obstruction, 10 patients (23.3%), incontinence 10 patients (23.3%) and impotence 7 patients (16.3%). patients treated with a primary urethral repair presented a significantly less development of infection, obstruction and stenosis. (p < 0.05). patients with pelvis fracture associated to urethral trauma had a significant higher risk of developing stenosis and impotence. (p < 0.05). conclusions: both different surgical techniques compared showed a similar complication and morbidity rates in middle follow up. each procedure should be selected according to clinical condition of the patient, the extension of the urethral damage, the associated traumatic lesions and the surgeon's expertise. in our searched patients, treated with a primary urethral repair we found a significantly less development of infection, obstruction and stenosis.
Accruals, cash flows and earnings in European privately held fims
Amor Tapia, Borja,Tascón Fernández, María Teresa
Pecunia : Revista de la Facultad de Ciencias Económicas y Empresariales , 2011,
Abstract: Este trabajo examina las propiedades de los ajustes al devengo, los flujos de caja y los resultados en las empresas europeas no cotizadas. A partir de varias hipótesis sobre la persistencia de losresultados y sus componentes, encontramos que las empresas no cotizadas parecen comportarse de forma diferente a la evidencia encontrada previamente sobre las empresas cotizadas. Lasdiferencias son significativas cuando los ajustes al devengo son extremos, dado que la persistencia del ROA y de los flujos de caja siguen patrones de comportamiento distintos a los encontrados en las empresas estadounidenses cotizadas. Pero contrariamente a nuestrashipótesis, las diferencias en la persistencia no son significativas cuando las empresas no cotizadas publican resultados positivos frente a resultados negativos.This paper examines the properties of accruals, cash flows and earnings in European privately held firms. We start from several hypotheses about the persistence of earnings and its components, finding that private companies seem to behave in a different manner than the publicly traded firms tested in previous literature. As hypothesized, differences are significant when accruals are extreme, though in European private firms, persistence of ROA relative to cash flow follows a different pattern than in US public firms. But contrary to our expectations, differences in persistence are not significant when companies report positive versus negative earnings.
Page 1 /198057
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.